Update GitHub Actions versions

The Actions which are used at this time use a deprecated version of Node.js and should be updated.

The warning in the pipelines:

> Node.js 12 actions are deprecated. Please update the following actions to use Node.js 16: actions/checkout@v2, actions/upload-artifact@v2. For more information see: https://github.blog/changelog/2022-09-22-github-actions-all-actions-will-begin-running-on-node16-instead-of-node12/.Show less

Check the latest build & deploy runs for any more details.

Start with the GitHub Actions workflow files used by the build and deploy runs, then inspect the latest runs for any additional deprecated actions. Update actions/checkout@v2 and actions/upload-artifact@v2 to Node.js 16-compatible versions, and verify that subsequent build and deploy runs no longer show the deprecation warning.

Written by the indexing model from the issue text.